Threadlinqs IntelligenceStart free

VulnerabilityCVE-2026-54301Published 2026-06-23

CVE-2026-54301 — n8n-io n8n

high (derived)

As of 2026-06-24, CVE-2026-54301 is a High-severity (band derived from the CVSS v4.0 score, not stated by the CNA) vulnerability in n8n-io n8n, CVSS v4.0 7, EPSS 0.3% (30.6th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-54301 as of 2026-06-24; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

CVSS v4.0
7/10High (derived)
EPSS
0.3%Higher than 30.6% of scored CVEs
CISA KEV
NoNot in the KEV catalog
Tracked threats
0None linked yet
Priority
4.7/10Threadlinqs triage score
Published
Updated 2026-06-24
CVSS v4.0 7 (High, derived from score) · EPSS 0.3% (higher than 30.6% of all scored CVEs) · Priority 4.7/10 · Published 2026-06-23

Last updated:

What is CVE-2026-54301?

n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, an authenticated user with workflow edit access could configure a Respond to Webhook node to serve binary content with an attacker-controlled Content-Type. The binary response path bypassed the central Content-Security-Policy sandbox header, allowing a public webhook to execute JavaScript in the n8n origin when visited by an authenticated user, with access to that user's session. This vulnerability is fixed in 1.123.55, 2.25.7, and 2.26.2.

The record classifies CVE-2026-54301 under weakness class CWE-79. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 104 days ago.

Severity and exploitation probability

CVSS v4.0 base score
7 — High (derived from score)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS (FIRST)
0.3% probability of exploitation in the next 30 days, higher than 30.6% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
4.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-06-23, last modified 2026-06-24

Is CVE-2026-54301 being exploited?

It currently carries a trending score of 37 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2026-54301

No vendor patch reference has been recorded for CVE-2026-54301 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

Threat activity tracking CVE-2026-54301

No threat campaign in the Threadlinqs corpus currently references CVE-2026-54301, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.

Vendor advisory and patch